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package org.sysmo.server.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.DynaActionForm;
import org.sysmo.server.SysmoServer;
import org.sysmo.server.user.User;
import org.sysmo.server.user.UserExistsException;

/**
 *
 * @author Derek
 */
public class DoAddUserAction extends org.apache.struts.action.Action {
    
    /* forward name="success" path="" */
    private final static String SUCCESS = "success";
    private final static String FAIL = "fail";
    
    /**
     * This is the action called from the Struts framework.
     * @param mapping The ActionMapping used to select this instance.
     * @param form The optional ActionForm bean for this request.
     * @param request The HTTP Request we are processing.
     * @param response The HTTP Response we are processing.
     * @throws java.lang.Exception
     * @return
     */
    @Override
    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        SysmoServer server = (SysmoServer)getServlet().getServletContext().getAttribute("sysmoServer");
        User currentUser = (User)request.getSession().getAttribute("user");
        DynaActionForm dynaForm =(DynaActionForm)form;
        int uid = (Integer)dynaForm.get("uid");
        if (uid == 0) {
            try {
                currentUser.addUser((String)dynaForm.get("username"), (String)dynaForm.get("password"));
            } catch (UserExistsException e) {
                request.setAttribute("error", "用户名已存在");
                request.setAttribute("showBox", "");
                dynaForm.set("password", "");
                dynaForm.set("password2", "");
                return mapping.findForward(FAIL);
            }
        } else {
            User user = server.getUser(uid);
            if (!user.verify((String)dynaForm.get("oldpassword"))) {
                request.setAttribute("error", "旧密码错误");
                dynaForm.set("oldpassword", "");
                dynaForm.set("password", "");
                dynaForm.set("password2", "");
                return mapping.findForward(FAIL);
            }
            user.setPassword((String)dynaForm.get("password"));
        }
        request.removeAttribute("showBox");
        request.removeAttribute("error");
        return mapping.findForward(SUCCESS);
    }
}
